Why are three-phase motors preferred for water treatment facilities?

Three-phase motors are preferred in water treatment facilities primarily because they provide better power efficiency compared to single-phase motors. This efficiency comes from the ability of three-phase systems to deliver a more consistent and stable power output, which results in less wastage of energy during operation. The continuous flow of power in three-phase systems minimizes fluctuations in torque, thereby allowing for smoother operation and reducing the stress on equipment.

In water treatment applications, where motors often need to run continuously and under varying loads, the efficiency gains from three-phase motors mean that they can handle these demands more effectively. This leads to lower overall energy costs and longer operational lifespans for the motors, making them a more reliable choice for facilities that must maintain constant performance over time.

While the other options may present valid points for consideration, they do not encapsulate the primary reason why three-phase motors are chosen in this context.